نتایج جستجو برای: filament yarn

تعداد نتایج: 20900  

Journal: :علوم و تکنولوژی پلیمر 0
بهاره مهرابلی احمد موسوی شوشتری محمدرضا محدث مجتهدی علی خسروشاهی

nowadays, polymer blends usages increase more and more in order to produce materials with better properties. according to many research works, the blends of polyolefins have shown industrial importance. the purpose of this project was to carry out some investigations on fibers melt spun from the polypropylene and low density polyethylene blends. pp and ldpe are immiscible. pp/ldpe blend filamen...

Journal: :علوم و تکنولوژی پلیمر 0
طاهره معینی محمد حقیقت کیش

this work has setup to determine the effects of a solvent on the structure and properties of polypropylene fibres with different physical structures. samples of continuous filament yarns with different physical structures (partially oriented (poy) and drawn yarns) are treated with decahydronaphthalene (decalin) at 28, 55, 75 and 95oc. at 95oc, the samples are dissolved completely in decalin and...

2010
Aydin Nabovati Edward W. Llewellin Antonio C.M. Sousa

1359-835X/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.compositesa.2009.11.011 * Corresponding author. Present Address: Departm trial Engineering, University of Toronto, Toronto, O 8216; fax: +1 416 978 7753. E-mail address: [email protected] (A. Nabov The lattice Boltzmann method (LBM) is used to investigate the dual-scale problem of fluid flow through three-dimensional multifila...

Journal: :Journal of the Textile Machinary Society 1954

2016
Hua Su Xi’an Zhang

The constant winding tension can make the filament arranged in order. The stress distribution between the filament balance fully gives play to the enhancement of filament, and increases the intensive workload of the composite winding material. This paper conducts the mechanical analysis for the unwinding roller and tension measuring roller of the cylindrical winding machine so that gets the mec...

Journal: :ACS nano 2014
Allison M Beese Xiaoding Wei Sourangsu Sarkar Rajaprakash Ramachandramoorthy Michael R Roenbeck Alexander Moravsky Matthew Ford Fazel Yavari Denis T Keane Raouf O Loutfy SonBinh T Nguyen Horacio D Espinosa

Studies of carbon nanotube (CNT) based composites have been unable to translate the extraordinary load-bearing capabilities of individual CNTs to macroscale composites such as yarns. A key challenge lies in the lack of understanding of how properties of filaments and interfaces across yarn hierarchical levels govern the properties of macroscale yarns. To provide insight required to enable the d...

Journal: :Journal of the Textile Machinery Society of Japan 1961

2015
Khalil Ahmed Muhammad Nasir Nasreen Fatima Khalid M. Khan Durey N. Zahra

This paper presents the comparative results of a current study on unsaturated polyester resin (UPR) matrix composites processed by filament winding method, with cotton spun yarn of different mass irregularities and two different volume fractions. Physical and mechanical properties were measured, namely ultimate stress, stiffness, elongation%. The mechanical properties of the composites increase...

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